Piston ring for Grove RT865

The piston ring 9904103707 serves as a sealing component within the hydraulic systems or internal combustion engines of heavy machinery. By creating a seal between the piston and the cylinder wall, it maintains the compression required for engine operation or the hydraulic pressure needed for cylinder actuation. This component is essential for managing internal fluid or gas containment during the operation of the machine.

This part is specifically compatible with the Grove RT865 rough-terrain crane. It is installed within the cylinders that manage boom functions, outriggers, or steering systems, or alternatively within the crane's diesel engine assembly. Proper installation of this ring ensures that the hydraulic cylinders maintain their intended load-bearing capacity and operational precision.

Piston rings function by expanding against the cylinder wall to form a barrier. In hydraulic applications, this seal prevents internal leakage that would otherwise lead to sluggish or erratic movement of the crane components. In engine applications, the ring maintains combustion chamber pressure and assists in managing oil control and heat transfer from the piston to the cylinder block. Regular inspection of these rings is required to prevent pressure loss and maintain the overall performance of the hydraulic and engine systems.